I build rifles for a living and am a gunsmith and I call em the way I see em. The a-bolt is a much better design to start with and is combo of good design,features the others don't have,quality,materials,and workmanship. If you like tikkas-that's great,they are good rifles,just NOT as good as a-bolts!
By the way,I can give you a BUNCH of examples where people bring them(tikka) to me to "make em shoot".